With a metropolitan population approaching 23 million, Lagos is the economic engine of Nigeria and one of the largest cities on the African continent. Rapid growth, unfortunately, has come with a myriad of urban transport challenges. To get around, most residents rely on the thousands of yellow mini-buses that ply the streets—the infamous "Danfos"—and on a growing supply of three-wheelers. These limited options, combined with endemic congestion, make commuting in Lagos a slow, unreliable, and expensive endeavor.

But this entrepreneurial city cannot afford to be stuck in traffic. Things started moving in 2008, when Lagos introduced Africa's first Bus Rapid Transit (BRT) corridor with technical support from the World Bank under the Lagos Urban Transport Project. The corridor was referred to as BRT-lite, a local adaptation that did not apply all the "classical" features of a BRT (level loading, fancy stations) but was well integrated with the local environment and became immediately successful. In fact, the operator was able to recoup its capital investment in the bus fleet in 18 months even without banning competitor services. The BRT services demonstrated that improving the erstwhile chaotic system was indeed possible.

Building on this success, Lagos has taken steps to improve and expand the reach of the BRT. The Second Lagos Urban Transport Project (LUTP2), supported jointly by the World Bank and the French Development Agency, provided about $325 million in 2009 toward building a 13-km extension of the BRT corridor between Mile 12 and the satellite town of Ikorodu. In addition to the BRT infrastructure, the project financed the rehabilitation and widening of the road from four to six lanes, the construction of pedestrian overpasses, a bus depot, terminals, a road bridge, measures to enhance flood resilience, as well as improved interchange and transfer facilities.

By 2030, global passenger traffic is set to rise by 50%, and freight volume by 70%. By 2050, we will have twice as many vehicles on the road, with most of the increase coming from emerging markets, where steady economic expansion is creating new lifestyle expectations and mobility aspirations. Mega-projects like China’s One Belt, One Road could connect more than half of the world’s population, and roughly a quarter of the goods that move around the globe by land and sea.

These transformations create a unique opportunity to improve the lives and livelihoods of billions of people by facilitating access to jobs, markets, and essential services such as healthcare or education.

But the growth of the transport sector could also come at the cost of higher fossil fuel use and greenhouse gas emissions, increasing air and noise pollution, a growing number of road fatalities, and worsening inequities in access.

Although these are, of course, global challenges, developing countries are disproportionately affected.

While the case for sustainable mobility is evident, the sector still lacks coherence and clear objectives. There is a way forward, but it requires pro-active cooperation between all stakeholders.

That’s what motivated the creation of Sustainable Mobility for All (SuM4All), a partnership between a wide range of global actors determined to speak with one voice and steer mobility in the right direction.

SuM4All partners include Multilateral Development Banks, United Nations Agencies, bilateral organizations, non-governmental organizations, civil society organizations, and is open to other important entities such as national governments and private companies. Together, these organizations can pool their capacity and experience to orient policymaking, turn ideas into action, and mobilize financing.

Urbanization and rising incomes have been driving rapid motorization across Asia, Africa, and Latin America. While cities are currently home to 50% of the global population, that proportion is expected to increase to 70% by 2050. At the same time, business-as-usual trends suggest we could see an additional 1 billon cars by 2050, most of which will have to squeeze into the already crowded streets of Indian, Chinese, and African cities.

If no action is taken, these cars threaten literally to choke tomorrow’s cities, bringing with them a host of negative consequences that would seriously undermine the overall benefits of urbanization: lowered productivity from constant congestion; local pollution and rising carbon emissions; road traffic deaths and injuries; rising inequity and social division.

However, after a century of relatively small incremental progress, disruptive changes in the world of automotive technology could have fundamental implications for sustainability.

What are these megatrends, and how can they reshape the future of urban mobility?

In May last year, key stakeholders joined the World Bank Group in calling for global and more concerted action to address the climate impact of transport while ensuring mobility for everyone. More recently, the Secretary-General’s High-Level Advisory Group on Sustainable Transport noted, in its final recommendations to Ban Ki-Moon, emphasized the need for “coalitions or partnership networks” to “strengthen coherence” for scaling up sustainable transport, as well as establishing monitoring and evaluation frameworks. These issues have been raised at Habitat III, COP22 and at the Global Sustainable Transport Conference in Ashgabat.

As the global community readies itself to move from commitments to implementation, what can transport learn from similar initiatives in other sectors, such as Sustainable Energy for All (SE4All)?

To learn more about the future of sustainable mobility, don't miss Transforming Transportation 2017 on January 12-13. Click here to watch the event live and submit your questions to our experts.

From taxi apps to car sharing, from buses to the metro, from bike sharing to walking, not to mention personal cars, there are more transportation choices than ever before for that staple of modern life: the daily commute. The same goes for the transport of goods, which can get from A to B by road, air, rail, waterways and soon drones. There are currently more than 12,600 km (nearly 8000 miles) of metro or urban rail and 5,400 km (3,300 miles) of bus rapid transit (BRT), collectively providing 154 million trips a day in 250 cities. Increased access to transport and enhanced connectivity decreases travel time and generates higher rates of direct employment, keys to elevating overall economic opportunity.

That’s the good news. The bad news is that the increase in mobility options comes at a high price. The challenges associated with growing traffic, especially in cities, are significant and threaten to become insurmountable. And despite the wide range of ways to get around, there have never been so many people who lack access to transportation or the means to use transportation.